How Toyota Hybrid System Work Part 1 High Voltage Battery

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Published 2020-10-16
A Toyota Master Diagnostic Technician explains in simple terms how the high voltage battery works in Toyota Hybrids.

In this brand new series I will go over all components of the hybrid system explaining their basic function in a simple way that's easy to understand. The theme of this series is simple but complicated.

The hybrid system in Toyota cars is super complicated and a marvel of engineering. In this series I try to keep things simple and light so Toyota Hybrid owners can see how their cars work.

I believe if you know how your car works you'll be able to utilize all it's features better and better understand your hybrid Toyota.

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0:00 Intro
1:46 HV Battery Types
3:09 HV Battery Construction
4:48 How Hybrids Turn On
8:45 Hybrid Fan Operation
10:56 Service Plug
12:12 What happens when they fail
13:38 HV Battery Charging
14:32 Battery Aerial View

All Comments (21)
  • @dj3114
    As a college instructor for 20 years, I know that some people can be a master of subject matter but can't teach it to others. Helping someone else understand complex issues and making it easy to understand is a skill. It comes natural to a few and others never get it as hard as they try. AMD is a natural - I enjoy listening and learning from him. Don't change the recipe.
  • I am a fire fighter. Knowing that there is a disconnect switch from the battery to the vehicles systems is VERY important for me to know. Our challenge is that if the battery cell is damaged in an accident how can we perform an extrication without getting shocked, or worse? Obviously we need to remove a viable patient from a vehicle as quickly as possible, but if the vehicle is charged, we are presented with greater danger for emergency crews. Any information in this regard, addressed to emergency response, would be much appreciated by many.
  • @AllenReinecke
    I am an engineer but you're video series is perfect for an overview introduction to the system. All that electrickery simply explained! Thanks for doing this. We are considering a Toyota Hybrid as our next vehicle.
  • @AM-bl2dj
    This guy is good, clear, honest, knowledgeable and involving! Thank you for passing the knowledge on 👍🏻
  • @g0hjq
    I'm really looking forwards to watching your entire how hybrids work series. I've had 3 Priuses, and now have a 2020 Corolla 1.8 hybrid, and (apart from one blown bulb), never had a single problem with any of them. Amazing reliability for such a complex piece of electro-mechanical machinery.
  • @the.vinodd
    Those dislikes are from GM staffs 😝😝
  • @Matthew21v42
    Anyone that can make the complex simple is one that really understands what they are talking about.
  • @Solomonamagache
    hello there, thanks for all your educative videos. I just bought a new highlander hybrid bronze edition. I picked it at 2 miles and full tank, but the vehicle was empty at 380 miles. base on 35 per gallon, I should be getting 595 .am I doing something wrong?
  • @anischab
    I just bought a RAV4 plug in hybrid and I am able (with an application on my smartphone) to start the AC air conditioning about 20 min before leaving in the morning (even st a timer)… do you recommend to do that on cold days to have the battery in adequate temperature? I wanted to “spare electric capacity” but after this video, I might do otherwise. Thanks.
  • How long can we park a Hybrid Rav4 2021 without damaging the battery ? I don’t use my car during the summer.... so can I be in trouble if I use my car once a week or even every 2 weeks ? Thanks :) It’s my first Hybrid :)
  • whats your opinion of the 2024 metal hydride battery in the rav4 and why have they not gone lithium ion
  • @larryroma7312
    We currently own a 2015 Fusion Hybrid with 79K miles. Great car, no problems. We're currently looking at a Lexus 300h Ultra around $57K. Just saw a USED 2023 ES 350 with 9,500 miles , V6 for $ 43,263 OTD. Which would you buy? I Know you own a Camry Hybrid.
  • @AveiroDan
    With a vehicle like this, do you recommend or not recommend using a 12V trickle charger/battery maintainer if the car is going to sit for more than 3-4 weeks. Can you comment on both the new Lithium Ion and the old Nickel Metal Hydride. I have a 2014 Camry SE hybrid and I plan on storing it for the winter and was wondering what kind of trickle charger to use, that is if it’s ok to use.
  • @Peace1dy
    When you are driving on the highway between75-80 mph, what is happening to the hybrid battery? Mine usually stays at 3 bars. Does it just switch to using the engine as a gasoline engine 100% no damage to the battery because it’s not being charged?
  • @MrStR1K3Rify
    Hello. You said hybrid battery don’t like sitting. So during this pandamic and work from home times, my car doing alot of sitting. So question is How long of sitting is harmful to my HV battery and what are the signs of failing HV battery?
  • @kirkthiery1374
    I have a 24 hybrid xle. Does the hybrid battery only last 3 to 5 years?
  • @oxidation8688
    I have a question. Is it normal to hear a clicking noise down below by your feet every-time you press the brake pedal or brakes? The clicking noise is coming directly from the pedals being pressed. Took it to Toyota dealer for repair and they have no clue why it makes this noise. Thank you and love your channel.
  • I’ve heard hybrid batteries usually have a lifespan of approximately 16 years. Is that your experience? I have a 2009 Prius. If the hybrid batteries go bad, is it possible to just run it without the hybrid batter where at the point it would become a gasoline powered car only?
  • @horationelson57
    Toyota battery technology? Is there an upper limit as to how powerful the power of a battery pack in a Toyota Hybrid can be? Meaning can Toyota develop hybrid electric motors with even greater economy( say, like a plug-in hybrid) Thank you!!
  • I'm curious as to why exactly the tow rating on my 2021 rav4 hybrid is only 1500 pounds compared to 3000 in the conventional awd model. Was wondering if you could shed some light onto that? Thanks love your channel